Mersen A70QS16-14F - These Premium Amp-trap French Cylindrical Semiconductor Fuses are an extension of the popular A70QS product line. They are solid-fill 14mm and 22mm fuses IEC rated 690VAC, 200kA Interrupting and 700VDC, 100kA interrupting at 10ms time constant. In addition, these fuses have an 890 VDC rating for capacitor discharge applications up to 2.5ms time constant. All ampere ratings are available with a striker. Applications include small inverter drives and UPS systems, with superior I²t for improved protection and performance. 690 Volts 16 amps.
Mersen

A70QS16-14F

Alternate Item Number: 782001142001

UPC: 782001142001

Contact for Pricing

Overview

The Mersen A70QS16-14F Premium Amp-trap French Cylindrical Semiconductor Fuse represents a significant advancement in overcurrent protection for critical industrial power systems. As an extension of the highly regarded A70QS product line, this fuse is engineered to deliver unparalleled performance and reliability, particularly in applications demanding robust semiconductor protection. Its solid-fill construction, available in both 14mm and 22mm diameters, ensures superior thermal management and durability under extreme operating conditions. Engineered to meet stringent international standards, the A70QS16-14F boasts an IEC rating of 690VAC with an impressive 200kA interrupting capacity. For DC applications, it provides a robust 700VDC rating with a 100kA interrupting capability at a 10ms time constant, making it ideal for protecting sensitive DC busbars and power electronics. Furthermore, this versatile fuse offers a specialized 890VDC rating for capacitor discharge applications, capable of handling transient events up to a 2.5ms time constant. This unique capability is crucial for safeguarding systems that involve rapid energy release, such as those found in advanced power supplies and energy storage solutions. The A70QS16-14F is specifically designed for demanding applications where precise and rapid fault interruption is paramount. Its superior I²t characteristics translate directly into enhanced protection for semiconductor devices, minimizing damage and downtime. Key applications include: * **Small Inverter Drives:** Protecting the power modules within variable frequency drives (VFDs) used in motor control and automation. * **UPS Systems:** Ensuring the integrity of uninterruptible power supplies, safeguarding critical loads from power disturbances. * **Capacitor Banks:** Providing reliable protection for capacitor discharge circuits in various industrial processes. * **DC Power Systems:** Offering robust overcurrent protection in a wide range of DC power distribution networks. Available with an optional striker mechanism, the Mersen A70QS16-14F facilitates easy fault indication and integration into fuse monitoring systems. This feature is invaluable for quick diagnostics and maintenance planning in complex industrial environments. Mersen's commitment to quality and innovation is evident in the A70QS series, providing engineers with the confidence that their critical equipment is protected by industry-leading technology. Selecting the correct fuse rating, including ampere rating (16 amps in this case) and voltage class, is essential for optimal system performance and safety. The A70QS16-14F, with its advanced specifications and proven reliability, stands as a premier choice for engineers seeking superior semiconductor protection.
  • Premium Amp-trap French Cylindrical Semiconductor Fuse
  • IEC Rated 690VAC, 200kA Interrupting; 700VDC, 100kA Interrupting (10ms)
  • Specialized 890VDC rating for capacitor discharge (2.5ms time constant)
  • Solid-fill construction for enhanced thermal performance
  • Superior I²t for improved semiconductor protection; available with striker

Specifications

Amperage Rating
16 A
Application
Small inverters, UPS systems, Solid State Relays, motor drives and similar 700V or less equipment
Brand Name
Ferraz Shawmut
Connection
Ferrule
Connection Type
Ferrule
Current Rating
16 A
Material
Solid-fill
Mounting
Clip
Series
A70QS
Size
14 mm
Special Features
International 14 x 51mm (2 In x 9/16 In) and 22 x 58mm (2-1/4 In x 13/16 In) sizes for worldwide acceptance Ferrule mount for design versatility Very low I2t for improved semiconductor protection 690V IEC rated, tested at 760VAC, can be used up to 750VAC in U.S. 700VDC rated for dc protection of equipment with L/R <= 10ms/c Superior cycling ability for longer life on difficult cyclic loading applications
Standard
UL Recognized Component CSA Certified IEC 269-4 Compliance
Type
North American Round Style
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
2 IN x 0.55 IN x 0.55 IN
Package Dimensions (L x W x H)
5.08 cm x 13.97 mm x 13.97 mm
Package Weight (Imperial)
0.050 L
Package Weight (Metric)
0.023 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

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9F61 Size B Clips 1.6in

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.